I do wish we'd see more diversity in subtle little things I bet most people don't even realise are actually really samey. Like you said with bogsneaks having mammalian back legs, I think that applies to basically every breed (that has back legs at least lol). They're all usually pretty mammalian/avian. I'm pretty sure every single breed has digitigrade legs, where the heel/ankle is off the ground. It'd be neat to have more breeds with plantigrade legs where the heel/ankle touches the ground. Also the actual foot and toe anatomy while they're all fairly "reptilian" looking none of the breeds actually have particularly lizardy feet, with long spindly toes and long claws that elevate the tips of the toes off the ground. It's a really unique and cool look :(

Hell, even with the more "avian" looking breeds they're still not as avian as they could be. There's strong mammalian influence in every single breed. I would love a breed that actually properly looks like a big fucked up bird. Skydancers and Wildclaws still leave a lot to be desired in that regard imo.